Patents by Inventor Yasuo Sato

Yasuo Sato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240172359
    Abstract: Provided is a roughened copper foil capable of achieving both excellent transmission characteristics and high peel strength when used for a copper-clad laminate or a printed wiring board. This roughened copper foil includes a roughened surface on at least one side. The roughened surface has a roughness slope tan ? of 0.58 or less as calculated based on a mean height Rc (?m) and a mean width RSm (?m) of profile elements by formula Rc/(0.5×RSm), and a small projected area Rc×RSm of 0.45 ?m2 or more and 2.00 ?m2 or less that is a product of the mean height Rc (?m) and the mean width RSm (?m) of the profile elements. Rc and RSm are values measured in accordance with JIS B0601-2013 under a condition of not performing a cutoff by a cutoff value ?s and a cutoff value ?c.
    Type: Application
    Filed: March 17, 2022
    Publication date: May 23, 2024
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Ayumu TATEOKA, Ryosuke KANEYAMA, Yasuji HARA, Yasuo SATO, Shinichi OBATA, Chun Chieh LI
  • Patent number: 11211678
    Abstract: Provided is a dual-band resonator which can be downsized further than conventional ones. A dual-band resonator is provided with a first conductor and a second conductor. The first conductor is configured to be folded at a first folding part at the center so that both extensions are in a prescribed direction and adjacent to one another with a prescribed space therebetween, wherein a conductor part closer to one end side than the first folding part and a conductor part closer to the other end side than the first folding part are further folded at second folding parts between the one end and the first folding part and between the other end and the first folding part, respectively, in a direction in which the one end and the other end are apart from each other. The second conductor extends in a prescribed direction contiguously to the first folding part of the first conductor. The first conductor constitutes a half-wavelength resonator, and odd-mode resonance occurs in the first conductor.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 28, 2021
    Assignees: TOKYO KEIKI INC., THE JAPAN STEEL WORKS, LTD., UNIVERSITY OF YAMANASHI
    Inventors: Naoto Sekiya, Takahiro Unno, Tsutomu Tsuruoka, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
  • Patent number: 11035657
    Abstract: Provided is a threaded-hole inspection device having high inspection precision. An incomplete thread ridge portion of a gauge portion 5 of a thread gauge 1 is removed, a phase-positioning portion 8 for positioning a tip-side start point 7 of a complete thread ridge at a prescribed phase when the thread gauge 1 is mounted on a rotating-shaft portion 2 is provided to a fastening portion 6 of the thread gauge 1 that is to be fastened to the rotating-shaft portion 2, and a phase-positioning engaging portion 9 that is to engage with the phase-positioning portion 8 is provided to the rotating-shaft portion 2.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 15, 2021
    Assignee: DAI-ICHI SOKUHAN WORKS CO.
    Inventors: Mamoru Hara, Yasuo Sato, Atsushi Sato, Tetsuya Horiuchi, Teruyuki Miyashita, Takao Hayashi, Kenji Miyamori, Koji Miyamori, Mamoru Watanabe
  • Patent number: 10877454
    Abstract: The present invention is applied to a distributed control system in which a plurality of control devices (a central control device, an individual control device, and the like) are connected via a network. For example, the central control device executes a start-up deadline determination processing for setting a start-up deadline in consideration of the performance of a device to be controlled, and communication processing for transmitting a packet including identification information of a command and information of the start-up deadline to the individual control device. For example, when receiving the packet transmitted from the central control device, the individual control device controls execution of the command on the device to be controlled on the basis of the start-up deadline included in the packet.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 29, 2020
    Assignee: HITACHI, LTD.
    Inventors: Tatsuya Maruyama, Yasushi Tomita, Yasuo Sato, Yoshihiro Mizuno, Makoto Aikawa
  • Patent number: 10829903
    Abstract: A device for calculating construction assistance information includes: an acquisition unit that acquires, from a vibratory hammer construction machine, information that contains at least values indicating a eccentricity force of a vibratory hammer which the vibratory hammer construction machine imparts to a construction object, the number of impacts, and a depth of penetration of the construction object; and a calculation unit that calculates a accumulated impact force indicating a work load of construction on the basis of the information acquired by the acquisition unit.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: November 10, 2020
    Assignees: NIHON UNIVERSITY, Marufuji Sheet Piling Co., Ltd.
    Inventors: Shuichi Shimomura, Masaki Nakai, Yasuo Sato
  • Publication number: 20200194856
    Abstract: Provided is a dual-band resonator which can be downsized further than conventional ones. A dual-band resonator is provided with a first conductor and a second conductor. The first conductor is configured to be folded at a first folding part at the center so that both extensions are in a prescribed direction and adjacent to one another with a prescribed space therebetween, wherein a conductor part closer to one end side than the first folding part and a conductor part closer to the other end side than the first folding part are further folded at second folding parts between the one end and the first folding part and between the other end and the first folding part, respectively, in a direction in which the one end and the other end are apart from each other. The second conductor extends in a prescribed direction contiguously to the first folding part of the first conductor. The first conductor constitutes a half-wavelength resonator, and odd-mode resonance occurs in the first conductor.
    Type: Application
    Filed: April 27, 2018
    Publication date: June 18, 2020
    Inventors: Naoto SEKIYA, Takahiro UNNO, Tsutomu TSURUOKA, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA
  • Patent number: 10629974
    Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: April 21, 2020
    Assignees: UNIVERSITY OF YAMANASHI, THE JAPAN STEEL WORKS, LTD.
    Inventors: Naoto Sekiya, Katsuhiro Terao, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
  • Patent number: 10628896
    Abstract: A system stability monitoring device monitors the stability of a power system and is equipped with: a storage unit for storing spot information indicating the positional relationship between a plurality of measurement spots in the power system; a receiving unit for receiving time-series measurement information measured by a measuring device provided at each of the measurement spots; and a calculation unit for detecting the frequency components of the power fluctuation from the measurement information, selecting, based on the frequency components, measurement spot group candidates that are measurement spots among the plurality of measurement spots, obtaining the electrical distances between the measurement spot group candidates on the basis of the spot information, and categorizing the measurement spot group candidates into at least one measurement spot group on the basis of the electrical distances.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: April 21, 2020
    Assignee: HITACHI LTD.
    Inventors: Jun Yamazaki, Masahiro Yatsu, Sumito Tobe, Yasuo Sato, Osamu Tomobe, Eisuke Kuroda
  • Publication number: 20190361419
    Abstract: The present invention is applied to a distributed control system in which a plurality of control devices (a central control device, an individual control device, and the like) are connected via a network. For example, the central control device executes a start-up deadline determination processing for setting a start-up deadline in consideration of the performance of a device to be controlled, and communication processing for transmitting a packet including identification information of a command and information of the start-up deadline to the individual control device. For example, when receiving the packet transmitted from the central control device, the individual control device controls execution of the command on the device to be controlled on the basis of the start-up deadline included in the packet.
    Type: Application
    Filed: September 22, 2017
    Publication date: November 28, 2019
    Inventors: Tatsuya MARUYAMA, Yasushi TOMITA, Yasuo SATO, Yoshihiro MIZUNO, Makoto AIKAWA
  • Patent number: 10473700
    Abstract: A voltage stability monitoring device, which monitors voltage stability of a power system, produces a plurality of assumed change scenarios indicating a scenario of a change that is assumed based on at least one of a system configuration of the power system and a change of a tide state, calculates the voltage stability using the assumed change scenario, calculates a voltage stability margin indicating margin degree of the voltage stability, based on the voltage stability selects an assumed change scenario with high severity of the voltage stability for each assumed change scenario, based on the voltage stability margin calculates which buses in the power system are vulnerable buses that decrease voltage stability, based on the assumed change scenario which is selected, and changes a monitoring target of the voltage stability, based on information of the vulnerable bus.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: November 12, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Eisuke Kuroda, Yasuo Sato, Osamu Tomobe, Jun Yamazaki, Masahiro Yatsu, Kouichi Hara, Haruki Miyoshi
  • Publication number: 20190293401
    Abstract: Provided is a threaded-hole inspection device having high inspection precision. An incomplete thread ridge portion of a gauge portion 5 of a thread gauge 1 is removed, a phase-positioning portion 8 for positioning a tip-side start point 7 of a complete thread ridge at a prescribed phase when the thread gauge 1 is mounted on a rotating-shaft portion 2 is provided to a fastening portion 6 of the thread gauge 1 that is to be fastened to the rotating-shaft portion 2, and a phase-positioning engaging portion 9 that is to engage with the phase-positioning portion 8 is provided to the rotating-shaft portion 2.
    Type: Application
    Filed: October 30, 2017
    Publication date: September 26, 2019
    Applicant: DAI-ICHI SOKUHAN WORKS CO.
    Inventors: Mamoru HARA, Yasuo SATO, Atsushi SATO, Tetsuya HORIUCHI, Teruyuki MIYASHITA, Takao HAYASHI, Kenji MIYAMORI, Koji MIYAMORI, Mamoru WATANABE
  • Patent number: 10371592
    Abstract: When vibration information calculated using measurement information is classified using a distance between measurement points which is calculated using the point information, even in a case in which a plurality of vibration modes with close vibration frequencies are present at the same time, stability determination at a high speed and a high accuracy is realized. A system stability monitoring apparatus which monitors system stability of a power system includes a measurement information collecting unit that collects measurement information of a plurality of points in the power system, a vibration analyzing unit that calculates vibration information indicating vibration of a system state in the plurality of points using the measurement information, an information storage unit that stores point information including position information of the plurality of points, and a vibration classifying unit that classifies the vibration information based on the point information.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: August 6, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Jun Yamazaki, Masahiro Yatsu, Sumito Tobe, Yasuo Sato, Osamu Tomobe, Eisuke Kuroda
  • Patent number: 10193385
    Abstract: In administration based on the existing (N?1) reliability criteria, an appropriate administration plan may be not drafted in a power system in which renewable energy increases. Accordingly, according to the invention, a power system monitoring apparatus that monitors a power system includes: an input unit that inputs assumable system breakdown data including an occurrence frequency of each assumable breakdown of the power system and assumable output change data including an occurrence frequency of each assumable output change of each generator connected to the power system; and an output unit that generates conditions by which events of the assumable breakdowns and the assumable output changes are combined based on the occurrence frequencies of the assumable breakdown and the assumable output change and outputs a control plan for each of the conditions.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 29, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yasuo Sato, Masahiro Yatsu, Kouichi Hara, Eisuke Kuroda, Osamu Tomobe, Jun Yamazaki
  • Publication number: 20180241108
    Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 23, 2018
    Inventors: Naoto SEKIYA, Katsuhiro TERAO, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA
  • Patent number: 9979064
    Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 22, 2018
    Assignees: UNIVERSITY OF YAMANASHI, THE JAPAN STEEL WORKS, LTD.
    Inventors: Naoto Sekiya, Katsuhiro Terao, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
  • Publication number: 20180058030
    Abstract: A device for calculating construction assistance information includes: an acquisition unit that acquires, from a vibratory hammer construction machine, information that contains at least values indicating a eccentricity force of a vibratory hammer which the vibratory hammer construction machine imparts to a construction object, the number of impacts, and a depth of penetration of the construction object; and a calculation unit that calculates a accumulated impact force indicating a work load of construction on the basis of the information acquired by the acquisition unit.
    Type: Application
    Filed: March 10, 2016
    Publication date: March 1, 2018
    Inventors: Shuichi SHIMOMURA, Masaki NAKAI, Yasuo SATO
  • Patent number: 9843190
    Abstract: A power system management device which manages a system state in a power system includes a system state candidate calculation unit for calculating state amounts of the system state based on an objective function from system characteristic information indicating characteristic information of a system structure, an inter-state distance calculation unit for calculating an inter-state distance representing a similarity of values between state amounts of the system state calculated by the system state candidate calculation unit, and a variability evaluation value calculation unit for calculating a variability evaluation value in which a variability of the system state is evaluated, based on an objective function value calculated from the state amount of the system state calculated by the system state candidate calculation unit and the inter-state distance calculated by the inter-state distance calculation unit. The system state is selected based on the calculated variability evaluation value.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: December 12, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Jun Yamazaki, Yasuo Sato, Toshiyuki Sawa, Taichiro Kawahara
  • Publication number: 20170353033
    Abstract: A power system stabilization device for the stabilization control of a power system, includes an indicator calculation unit for calculating an acceleration index, which is an index representing the acceleration of a generator for supplying electric power to the power system, by using the generator output, which is the output of the generator, and the generator phase difference that indicates the temporal change of the phase angle of the generator output; a threshold value determining unit for determining whether or not the acceleration index exceeds a preset threshold value; and a control command unit for generating a control command for control details that constitute a correction to the stabilization control, set in advance for the threshold value, when the acceleration index exceeds the threshold value.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 7, 2017
    Applicants: HITACHI, LTD., CHUBU ELECTRIC POWER CO., INC.
    Inventors: Eisuke KURODA, Yasuo SATO, Taichirou KAWAHARA, Kouichi HARA, Kouichi YOKOI, Keisuke KATSURAGI, Toshihito ZASHIBO, Takumi MATSUBARA, Makoto KUWABARA
  • Patent number: 9809454
    Abstract: The present invention is to provide a method for refining hydrogen with a hydrogen refining device in which the inside of a cell is divided into a primary side space and a secondary side space by palladium alloy capillaries each having one end being closed and a tube sheet supporting the open end of the palladium alloy capillaries, in which impurity-containing hydrogen is introduced from the primary side space to allow hydrogen to permeate the palladium alloy capillaries so as to collect pure hydrogen from the secondary side space. The method for refining hydrogen has a capability of decreasing the removed amount of gas containing impurities and efficiently collecting pure hydrogen from the secondary side space. From hydrogen with 1000 ppm or less of impurities as raw material hydrogen, gas containing impurities that does not penetrate the palladium alloy capillaries is removed from the primary side space at the flow rate of 10% or less of the introduction flow rate of the raw material hydrogen.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: November 7, 2017
    Assignee: JAPAN PIONICS CO., LTD.
    Inventors: Yoshinao Komiya, Satoshi Arakawa, Toshio Akiyama, Yasuo Sato, Noboru Takemasa
  • Patent number: 9780563
    Abstract: A distributed controller collects measurement value data of a voltage and a current in an own node and in another node; using the measurement voltage and the current of the own node and the measurement voltage and current of another node as input data, estimates a voltage or a current as a state quantity of the electric power system regarding another node from which the measurement value data cannot be collected, and outputs the estimate values; using the measurement data, the estimate value outputted from the state estimation functional unit and a voltage target value that has been set for each node, outputs the control commands for voltage controllers based on voltage change amounts to be distributed to the voltage control devices of the nodes including the own node. The voltages in the electric power system are controlled by superposition of voltage change amounts by the voltage control devices.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 3, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Masatoshi Kumagai, Shota Omi, Kenichiro Yamane, Yasushi Harada, Masahiro Watanabe, Yasuo Sato, Yasushi Tomita